I love Planet Money. I've been following their fascinating podcasts for ages, and in the last year they've been doing a terrific series about globalization by following the creation of a simple t-shirt - their own Planet Money t-shirt. It's been a pretty epic, world-straddling journey that shows how intertwined and complex our global, container-ship-connected economy is today.
Now the shirts are here and the PM team have now packaged up the whole story/journey into a very nice web site that is well worth spending some time with. Prepare to be amazed at what goes into such a humble product.